baber/WOPTO huggingface dataset:
Patent GB-675387-A (GB)
Title: Improvements in the manufacture of lime briquets
IPC: C04B35/057
Filed: 1950-02-03
Abstract: Briquets are produced by calcining finely divided calcium p hydroxide (slaked lime) at a temperature not above about 800 DEG C whilst excluding carbon dioxide from the lime, then moulding briquets containing a major proportion of lime obtained by such calcination at a pressure of at least 5,000 lb. per square inch. The slaked lime is preferably obtained from the dry generation process for acetylene using calcium carbide.  The lime is preferably calcined at 550 DEG C to 650 DEG C in e.g. an electrically heated kiln, an outside-fired kiln or a kiln using an inert gas. If a direct-fired kiln is used, the partial pressure of carbon dioxide in the combustion gas must be maintained low enough to prevent formation of calcium carbonate.  The briquetting is preferably carried out at a temperature not above 500 DEG C using pressures from 5,000 to 30,000 lb. per square inch. Coal, coke, aluminium powder or a binder may be incorporated in the briquets. Specification 363,526 is referred to.
Patent GB-340823-A (GB)
Title: Improvements in or relating to creeper sheets or endless conveyors for carding engines and like machines
IPC: D01G15/40
Filed: 1930-01-28
Abstract: 340,823. Endless belt conveyers. HIRST, E. W., 10, Talbot Avenue, and BERRY, A., 3, Grange Avenue. Birkby, both in Huddersfield. Jan. 28, 1930, No. 2852. [Class 78 (i).] In a creeper sheet or endless conveyer for carding-engines and like machines and comprising a series of parallel wooden laths a secured to the outer surfaces of endless leather bands c, metal cups or thimbles e are secured in openings extending through the bands c and laths a and form recesses engaged by teeth d<1> on the bearer roller or rollers d, whereby the creeper sheet is positively driven. The thimbles e are screwed into position and do not project on either side of the creeper sheet.
Patent GB-447535-A (GB)
Title: Improvement in the fitting up of condenser vanes
IPC: H01G5/06
Filed: 1936-01-31
Abstract: 447,535. Condensers. HALFTERMEYER, R., 35, Avenue Faidherbe, Montreuilsous-Bois, Seine, France. Jan. 31, 1936, No. 2909. Convention date, Feb. 2, 1935. [Class 38 (ii)] Condenser vanes I are assembled by form ing holes each with a laterally pressed flange and force-fitting then on the shaft or support ing rods A, B.
Patent GB-1368071-A (GB)
Title: Building construction
IPC: E04G21/22
Filed: 1972-04-21
Abstract: 1368071 Block walls P E PRODUCTS (NETHERTON) Ltd 21 April 1972 [22 Jan 1971] 2942/71 Heading E1B Spacers 10 are pressed into the mortar between adjacent courses of blocks and the second course of blocks pressed thereaaginst so as to always give a uniform thickness T of mortar. The spacers are moulded in one piece from synthetic resin. In a wall two spacers are placed on each block in each course, and the longitudinal axis of the spacers is at right angles to the wall.
Patent GB-422657-A (GB)
Title: Improvements in and relating to electric illumination control systems
IPC: H05B37/02
Filed: 1934-01-29
Abstract: 422,657. Control systems for consuming devices. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of La Roque, H. B.; 247, Vley Road, Scotia, New York, U.S.A.) Jan. 29, 1934, No. 2984. Convention date, Jan. 28, 1933. [Class 38 (iv)] An electric illumination control system comprises a lamp circuit the intensity of illumination of which is controlled by means including a grid controlled electric valve, a number of reactive circuits for controlling the voltage applied to the control grid and each including means for presetting the effective reactance value of the circuit whereby successive illumination intensities for the lamp circuits are preset, and means for fading the intensity of the lamp circuit from one preset value to another comprising means for oppositely varying the reactance of at least two of the reactive circuits. The various values of illumination are preset by means of variable chokes 24-38. To control the illumination of a bank of lamps 10 to that preset, e.g. on the choke 24, the switch 63<a> is closed and the grid control of the rectifier 46 adjusted to increase from zero to a maximum the current in the saturating winding of a choke 35. As the reactance of the choke is thus reduced current flows through the rectifier 18 and resistance 21 thus altering the grid bias on the valve 14 which controls the saturation of a choke 13 in series with the bank of lamps. Since the bias on the grid of valve 14 is proportional to the potential across the condenser 32, this potential being determined by the setting of the choke 24, the lamps 10 will light to an illumination value determined by the presetting of the choke 24. To change the illumination from this preset value to another, e.g. that determined by the setting of the choke 27, the switch 64d is closed and the phase shifting transformer 48 rotated through 90‹. This reduces the impedance of the choke 42 and increases the impedance of the choke 35 so that a gradual transition from the illumination preset by the choke 24 to that preset by the choke 27 takes place. Several banks of lamps 10 may be controlled by means of this arrangement.
Patent GB-1416362-A (GB)
Title: Window stays
IPC: E05C17/32
Filed: 1973-01-19
Abstract: 1416362 Window stays TITON HARDWARE Ltd 18 Jan 1974 [19 Jan 1973] 2996/73 Heading E2F A window stay comprises a hinged sash fitting 3 pivotally connected to one end of a link 1, a link 2 pivotally connected at one end to the other end of -the link 1, and a frame fitting 4 pivotally connected to the other end of the link 2, the latter pivotal connection having a spring 16 to allow limited tilting movement of the link 2 out of the horizontal plane. The links 1 and 2 are pivotally connected by means of a screw 12 attached to the link 2 and a nut 18 attached to the link 1, the screw and nut providing an adjustable friction grip and allowing the links to be disconnected.
Patent GB-231619-A (GB)
Title: Improvements in or relating to devices for indicating speeds or rates of movement, particularly applicable to vehicles
IPC: G01P3/08
Filed: 1924-02-05
Abstract: 231,619. Varley, C. H., and Williams, A. L. Feb. 5, 1924. Average speed, measuring directly.-In a device for indicating average speed comprising logarithmic cams and differential gearing connected to the pointer the cam wheels 6, 7 driven from a clock and a distance wheel of a speedometer respectively are arranged to rock toothed sectors 10, 15 pivoted on an axis 11 by pins 9, 14 engaging logarithmic cam grooves. The sectors, which rock in opposite directions, mesh with sun wheels 12, 16 mounted loosely on a spindle 4 and forming part of an epicyclic train the planet pinions 17, 19 of which are carried by a frame 18 secured to the spindle 4. Movement of the spindle is communicated by a gear-train 5 to an indicating pointer 3 movin; over a suitably calibrated dial 2. Restraining springs and zeroizing means may be provided, together with means for putting the device out of action.
Patent GB-620940-A (GB)
Title: Improvements in or relating to means for testing the accuracy of connecting rods andthe like of engines
IPC: G01B5/00
Filed: 1947-02-03
Abstract: 620,940. Gauging alignment. DAWSON SHANAHAN, Ltd., DAWSON, E., and SHANAHAN, F. Feb. 3, 1947, No. 3185. [Class 106 (ii)] Apparatus for testing the accuracy of connect ing-rods and the like comprises a vertical sup port to which are fixed three perpendicular pro jections, one of which is pivoted so that it can be moved relatively to the other two to accommodate different-sized annuli of connecting-rods which are placed on the projections. Secured to a vertical plate A and connected by a bar C, are two metal rods B between which is arranged a cam plate D pivoted to the plate A and sprung against a threaded rod H having a knurled head by which the plate D may be adjusted. The rods B may be replaced by an inverted channel-shaped member having two curved ribs on its upper surface.
Patent GB-562606-A (GB)
Title: Improvements in means for safeguarding operators on power presses
IPC: F16D9/06
Filed: 1943-03-01
Abstract: 562,606. Machinery safety devices. WELLS & CO., Ltd., A., and WELLS, A. W. J. March 1, 1943, No. 3306. [Class 80 (iv)] Relates to presses of the type comprising a flywheel constantly rotating on the shaft of the press, a clutch for coupling the flywheel to the shaft and release mechanism operable to throw in the clutch and cause the ram to descend. According to the invention, the flywheel is in two parts coupled by a shear pin, and means are provided which operate, in the event of relative motion of the two parts due to shearing of the pin, to disconnect the drive to the flywheel. The boss 10 of the flywheel rotates on the shaft 11 but may be clutched thereto by a key 20. The outer part 12, which constitutes a pulley driven by an electric motor, is coupled to the boss 10 by a shear pin 13 retained by a cap nut 31. The periphery of the boss is formed as a cam 14 engaging a slot 15 in a pin 16 normally held back in a recess 18 in the part 12 by a spring 17. Should the boss 10 seize to the shaft 11, the shear pin will snap and the relative motion of the parts 12, 10 causes the pin to ride up the surface of the cam and project to strike a switch arm 33, Fig. 2, to cut off current from the motor. The clutch mechanism, which is described in Specification 562,607 comprises a pin 19 having an extension 20 of semicircular section lying in a recess 21 in the shaft 11 and extending into a similarly shaped recess in a pin 22 having a projecting- dog 23 urged counter-clockwise by a spring but normally held by a release slide 24 which can be pulled down, when the operator depresses a treadle, to permit the dog 23 and pin 22 to rock and cause the pin 19 to project from the recess 21 into a co-operating recess in the shaft 11. The dog is again intercepted by the slide after a complete revolution shortly before which a brake 28 is applied. Specifications 302,061, (Class 80 (iv)], 417,532, 417,533 and 528,343 also are referred to..
Patent GB-113831-A (GB)
Title: Improvements in and connected with Tool-holders for Lathes, Planing Machines and other Machine Tools.
IPC: B23B27/16
Filed: 1917-03-07
Abstract: 113,831. Richards, D., and Dyson & Co. March 7, 1917. Tool-holders for lathes, planing machines &c., having locking rollers l in inclined recesses k to engage the tool d<1>, are provided with (1) springs p tu ensure the rollers gripping and (2) a reversely acting roller r to prevent forward movement. The springs comprise a bow-shaped part p<2>, Fig. 7, with notches o<1>, shown in the flat blank Fig. 8, to engage the roller and may have a reversely bowed part p<1> connected thereto by a neck p<3> and having points q to engage recedes in the holder. The roller r is released, when required, by inserting a pin through a hole t.
Patent GB-696152-A (GB)
Title: Improvements in electric dynamometers
Inventor: GARDEN JOSEPH
IPC: G01R31/34
Filed: 1951-02-13
Abstract: 696,152. Systems depending on two or more machines. HEENAN & FROUDE, Ltd. Feb. 12,1952 [Feb. 13, 1951], No. 3428/51. Class 38 (iv). In plant for running-in and subsequently testing a prime-mover 1, comprising a D.C. dynamo-electric machine 2 coupled to the prime mover and electrically connected to another machine 4 coupled to an A.C. machine 3A which receives power from or supplies power to an A.C. source 8, according as to whether the prime-mover is being driven by or is driving the machine 2, the power which can be supplied to the source 8 during testing is limited by an eddy current brake or dynamometer 5 arranged either on the same shaft as the prime-mover or, as shown, on the shaft common to the machines 3A, 4. Variable excitation for the brake is supplied by a unit 6 automatically controlled by a device 7 responsive to the magnitude and direction of current flow between the machines 2, 4, the arrangement being such that excitation is progressively increased with increasing current flow from machine 2 to machine 4. Device 7 may comprise an elementary inductor alternator having a toothed rotor which is driven at constant speed past a single pole carrying (1) an A.C. output winding, (2) a control winding through which passes the current of machine 2, and (3) a biasing winding, adjustably excited by D.C., for controlling the power output level at which excitation of the brake commences. The A.C. output of device 7 is applied, after valve amplification, to the control grids of controlled rectifiers forming part of the unit 6 and thus control the brake excitation by control of the firing-point of the rectifiers. When the generated power is used to supply a works load which is also partly supplied from the source 8, device 7 may have a further winding carrying D.C. proportional to the load current supplied by source 8, so that the effects of sudden changes in the magnitude of the work load are counteracted by the brake. The machine 2 and brake 5 may be mounted on trunnions for torque measuring purposes. Specification 229,427, [Class 106 (ii)], is referred to.
Patent GB-1152093-A (GB)
Title: Couplings for Fluid Lines
Inventor: CUNNINGHAM BRIAN GERALD
IPC: F16L37/34
Filed: 1967-01-24
Abstract: 1,152,093. Pipe couplings. H. K. PORTER CO. (GREAT BRITAIN) Ltd. 29 Feb., 1968 [24 Jan., 1967], No. 3434/67. Heading F2G. A coupling for connecting hydraulic or pneumatic lines comprises parts 5, 20 having spring- urged valves 15, 27, in the bores thereof and interconnectible by screw-threads, the valves being open or closed when the parts are respectively coupled or uncoupled, and there are locking means for maintaining the parts coupled together and comprising first and second castellated members 9, 22 on the parts and adapted to interengage when the screw-threads are fully interengaged, the member 9 being spring-urged into the locking position thereof. The part 5 carries a castellated sleeve 9 slidably mounted on the screw-threaded member 7, screwed on to the part 5, by bearing balls 10 located in channels 11, 12 or, alternatively, by interengaging splines, a spring 13 being located between the part 5 and the sleeve; the valve 15 is formed with fluid passages and urged by the spring 16 to a closed position. The part 20 includes an internally screw-threaded sleeve 22 and a valve 27 urged by a spring 28 on to a seating formed on a probe 24 having cylindrical and frusto-conical end portions 24a, 24b which co-operate with a correspondingly shaped recess in the valve 15 so that the minimum amount of air is trapped between the probe and valve when the coupling parts are connected. In the coupling operation, the multi-start screw-threads are engaged together, the sleeve 9 being pushed back by the sleeve 22 while the latter is rotated to the fully screwed up position when the sleeve 9 springs into the sleeve 22; unlocking of the parts is effected by pulling back the sleeve 9 whereby the sleeve 22 can be rotated to uncouple the parts. The valve 27 becomes seated on the member 7 before being unseated from the valve seat provided on the probe and before the valve 15 becomes unseated.
Patent GB-879289-A (GB)
Title: Improvements in or relating to the cathodic protection of the interior of tanks
IPC: C23F13/02
Filed: 1960-02-01
Abstract: 879,289. Anodes for preventing corrosion. SPECTOR, D. Feb. 1, 1960 [Feb. 24, 1959], No. 3471/60. Class 123(1) In a galvanic cathodic system for protecting the interiors of oil tanker tanks against corrosion by sea water ballast more uniform current distribution is achieved by employing anodes with their ends shielded by a coating of electrical insulating material, e.g. asbestos cement, which is resistant to sea water the exposed part of the anodes being directed to the more remote parts of the tank interior. As shown in Fig. 1 a number of shielded anodes 3 are mounted on insulated bars 7 bolted between adjacent pairs of transverse reinforcing ribs 2 situated in the base of each central tank 1, the shielded parts of the anodes being arranged to face the lower sides and the base of the respective tank. Anodes 31 are mounted vertically between the bracings 4 of wing tanks 14, 15 each anode in this case comprising a central exposed part 9 and covered end parts 11, 12, Fig. 4, the bar 13 also being covered. The anodes are made, e.g. of magnesium, aluminium, or zinc and plastic materials, if desired reinforced by glass fibre, can be used for coating the anodes.
Patent GB-503444-A (GB)
Title: Improvements in spring lids of oil cups, lubricators, wage cups and similar receptacles
IPC: F16N21/06
Filed: 1938-02-04
Abstract: 503,444. Lids for oil-cups &c. FISHER, M. M., (trading as KINGFISHER LUBRICATING CO.), and FISHER, W. D. Feb. 4, 1938, No. 3498. [Class 12 (iii)] [Also in Group XVII] The lid D of an oil-cup, wage-cup, or other receptacle, has a pair of projections d pivoted on a pin C passing through two lugs B on the outside of the cup A. The projections d bear on the ends of a flat spring E, the extreme ends of which enter recesses or slots in the lugs B. The central portion of the spring E bears against the outside of the cap A. In both the opened and closed positions of the lid D the ends of the spring E are flexed by the projections d to hold the lid open or closed.
Patent GB-286847-A (GB)
Title: Improvements in holders for globes or the like for electric or other lamps
IPC: F21V17/12
Filed: 1927-02-08
Abstract: 286,847. Baker, W. H., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 8, 1927. Securing globes, shades, and the like to holders.- The out-turned rim 9 of a globe, shade, or the like is engaged externally by hook portions 8 on arms 7 of a spider member 6 which is carried by a sleeve 4, 5 and is surrounded by a cupshaped member 11 adapted to be secured in a determined position on the sleeve by a screwed locking ring 12 so as to engage the arms 7 at or near the hooks 8 to hold the globe in position. The spider member 6 is clamped between two screwed rings 4, 5 which together form the sleeve, the locking ring 12 may be rotatably secured to or form part of the cup 11, and the lower part 13 of the cup may be somewhat tapered. The arms 7 preferably are resilient and they may be stiffened by means of a binding ring 10 arranged intermediate their ends. Alternatively, the arms 7 may be stiff and hinged to the sleeve or to the binding ring, or each may be in two parts hinged together. The supporting tube 1 may be partly replaced by a chain or the like, and it may be provided with projections for supporting the locking ring 12 and cup 11 when the globe is being removed.
Patent GB-100225-A (GB)
Title: Improvements in Adjustable Hinges.
Inventor: PEARSON HENRY
IPC: E05D7/04
Filed: 1916-03-10
Abstract: 100,225. Pearson, H., and Renfrew, J. March 29, 1915, fConvention, date]. Barrel hinges; attaching to articles.-Relates to adjustable hinges whereby the position of the door in relation to the jamb to which it is hinged may be adjusted. The flap C, which is secured in a recess in the jamb A, has its inner edge d hinged at f to a link plate E, the outer edge of which is hinged at c to the flap D secured to the edge of the door B. Engaging the pin g of the hinge joint c is a bar G also engaging a bracket member b on the flap C, to which it is adjustably secured for varying the position of the joint c and door B. As shown, the bar G is slotted for the passage of a screw o, by which it is clamped between a serrated block k and the bracket b. The bar G is serrated to engage the serrations of the block k.
Patent GB-579043-A (GB)
Title: Improvements in or relating to planetary gearing systems
IPC: F16H13/06
Filed: 1940-02-26
Abstract: 579,043. Friction gearing. BRISSONNET, P., and DURAND, G. A. Feb. 26, 1940, No. 3560. Convention date, May 23, 1939. [Class 80 (i)] In a planetary gear system, particularly for driving the shaft 10 of a supercharger compressor, comprising planet rollers 9 frictionally engaging a resilient ring 11 within a metal casing 12, the ring being of such size that is deformed by the rollers and only engages the casing at regions adjacent the rollers, leaving clearance spaces 16 between the rollers, the metal of the casing has a substantially greater co-efficient of expansion than that of the ring 11, so that the spaces 16 still remain when the temperature of the system increases during operation. The casing may be of aluminium and the ring of steel. The rollers 9 may have slight play on their shafts 8, which are carried by a plate 7 integral. with the driving shaft 6.
Patent GB-580693-A (GB)
Title: Improvements in or relating to electrical accessories
IPC: H01R13/502
Filed: 1944-02-26
Abstract: 580,693. Two-part couplings. FEKETE, A. F. Feb. 26, 1944, No. 3605. [Class 38 (i)] Separable parts of the insulating casing of a plug or socket fitting are secured together without the use of screws by interengaging dovetail ring means such as tongues and grooves. In the case of a plug member the removable part 2 has tongues 2a that slide into the grooves in the part 1 from the direction of the face carrying the contacts 3 so that when the plug is in the socket the part 2 cannot be removed. Upward movement of the part 2 is limited by a portion 7 of the part 1. A pin 6 may prevent separation of the parts. Other means for limiting the movement of and locking the parts comprise tapering surfaces (see Provisional Specification and Fig. 2) to increase the friction as the parts reach the assembled position. The contact blocks 4 may be secured in the part 1 by screwing the plug pins 3 into them and the holes in which the leads are clamped are arranged close to the flex entrance hole.
Patent GB-1493044-A (GB)
Title: Method of removing nitric oxide from exhaust gases
IPC: B01D53/56
Filed: 1975-01-28
Abstract: 1493044 Removing nitric oxide from exhaust gases KOBE STEEL Ltd 28 Jan 1975 3687/75 Heading ClA Nitric oxide is removed from exhaust gases by washing the gas 1 with a first aqueous solution 5 to remove nitric oxide, the first aqueous solution containing calcium chloride and hypochlorite or magnesium chloride and hypochlorite in amounts of 5 to 42% by wt. of the chloride and less than 20% by wt. of the hypochlorite, and subsequently washing the gas 8 with a second aqueous solution 10 containing an alkali to remove chlorine and hypochlorite ions. In addition to the gas-liquid phase reaction, a gas phase reaction between NO and the O 2  generated from the first aqueous solution may also occur. In a preferred embodiment, the first aqueous solution is circulated in a first circulation system 2, 6, 3, 4, 5 and the second aqueous solution is circulated in a second circulation system 9, 12, 3<SP>1</SP>, 4<SP>1</SP>, 10 and the spent second aqueous solution is recycled 13 into the first aqueous solution to replenish the hypochlorite and chloride content of the first aqueous solution when the concentration of the hypochlorite in the second aqueous solution is 0À01 to 5% by wt.
Patent GB-1396094-A (GB)
Title: Starter and control circuit for discharge lamps
IPC: H05B41/04
Filed: 1973-01-24
Abstract: 1396094 Supply systems for discharge lamps THORN ELECTRICAL INDUSTRIES Ltd 24 Jan 1974 [24 Jan 1973] 3690/73 Heading H2H A starting and controlling circuit for a pair of discharge lamps 10, 24 comprises a transformer 14 having a primary winding 12 connected in series between a terminal 18 of an A.C. source L, N and a terminal of the lamp 10 and the secondary winding 20 connected in series with the lamp 24 so that the series circuit is in parallel with the lamp 10, a starting switch 26 being connected in parallel with the lamp 24. The series circuit includes a capacitor 22 for power factor improvement. When a mains switch 16 is closed, and with the starter switch 26 closed, the lamp 10 starts as in a conventional semiresonant-start system, the lamp 24 starting thereafter when the switch 26 opens. The valves of the various components are so chosen that the currents through the lamps are equal in magnitude with the current through lamp 10 lagging, and that through lamp 24 leading, the supply voltage thus reducing stroboscopic flicker. In other embodiments a choke may be included in series with the capacitor 22 or a choke included in series with the lamp 10 and a third winding on the transformer 14 for heating a filament of the lamp 10.